Image Resizer
What is Image Resizer? (Quick Answer)
Resize images by width, height, or fit mode Free online tool, no registration required, 100% client-side processing.
Resize images by width, height, or fit mode
By Craftisle Team
Upload an image and process it. All processing happens server-side via Sharp. Your file is not stored.
Drop image here or click to browse
Max 4 MB • PNG, JPEG, WEBP, AVIF, GIF, TIFF
About Image Resizer — Free Online Tool
How to Use Image Resizer — Step by Step
- Upload an image
Drag and drop an image or click to browse.
- Set target size
Enter target width and height in pixels. Choose fit mode: Cover (crop), Contain (letterbox), or Stretch.
- Choose output format
Select JPG, PNG, WebP, or AVIF. Set quality (for lossy formats).
- Resize and download
Click Resize. Preview and download the result.
Use Cases for Image Resizer
Social media images
Resize images to exact dimensions required by Twitter, Instagram, Facebook, LinkedIn.
Web optimization
Generate multiple sizes from a single source image for responsive srcset.
Print preparation
Resize images to print resolution (300 DPI) from screen resolution (72 DPI).
FAQ — Image Resizer Free Online Tool
What fit mode should I use?
Cover = crop to fill (may cut off edges). Contain = fit inside (may add letterbox). Stretch = force exact dimensions (may distort).
What is the best output format?
WebP = smallest file size with good quality. AVIF = even smaller but less browser support. JPG = max compatibility. PNG = only if you need transparency.
Is my image data private?
Images are processed server-side (using Sharp). They are not stored permanently. Uploaded images are deleted after processing.